Steam-pressure regulator



; C. STICKLE.

STEAM PRESSURE REGULATOR.

APPLICATION FILED AUG 11, ms.

3 SHEETS-SHEET 1- Patented May 17,1921.

3 I 2 n1 air 2/ -9 Q n INVIENTOR. N Y C04: inc/a5 n I N ATTORNEYS.

c. .STICKL E. I STEAM PRESSURE REGULATOR.

' "APPucAT'|oN 'FILED AUG. 11. 1919.

1,378,630. f Patented May 17,1921

- BSHEETS-SHEETQ.

INVENTOR. 60. .5 5/7641:

4 TTORNEYJ.

UNITED STATES PATENT orrlcs.

coLE STIGKLE, or INDIANAPOLIS, INDIANA.

STEAM-PRESSURE REGULATOR.

To all whom it may concern.

Be it known that 1, Conn S'rronnn, a citizen of the United States, and aresident of Indianapolis, county of Marion, and State of Indiana, haveinvented a certain new and useful Steam-Pressure Regulator; and I dohereby declare that the following'is a full,

clear, and exact description thereof, refer-' ence being had to theaccompanying drawings, in which like numerals refer to like parts.

The object of this invention is to improve This invention consists incombiningwith the reducing valve mechanism, connected with high and lowpressure pipes, of auxiliary means controlled by fluid under pressureindependently of the main pipe, and

means controlled by the low pressure steam' or fluid for controlling thepressure in said auxiliary means.-

vThe full nature of the invention will be understood from theaccompanying drawings and the following specification and claim. p 7 IIn the drawingsFigure 1 is a side elevation of the mechanism with partsbroken away. Fig. 2 isa central vertical section through the timer forcontrolling the fluid in the auxiliary pipe. Fig. 3 is a side elevationof the reducing valve mechanism with parts in section. Fig. 4 is acentral vertical section through the reducing valve and associatedparts. Fig. 5 is an elevation of a modified form of the apparatus. Fig.6 is'a vertical section through the portion shown at the upper left handcorner of Fig. 5.

There is shown herein a high pressure pipe 10 leading from anysuitablesource of fluid under high pressure, connected with a lowpressure pipe 11 by a reducing valve mechanism 12 which may be of theusual type. The valve stem 13 of the reducing valve extends upwardly andis mounted on a frame 14 secured upon the reducing valve mechanism, andin said frame a lever 15 is :tulcrumed at 16 between its ends, and at 17is pivoted to thereducing valve stem 13, and at 18 is pivoted to aplunger rod 19. Therefore the lever 15 is pivoted to said parts on theopposite side of the fulcrum, as herein Specification of Letters Patent.Patented lay 17 1921 Application filed August 11, 1919. Serial No.316,806. 2

shown, although this particular manner of mounting is not necessary. Aweight 20 is suspended from one end of the lever 15 and '1 a weight 21from the other end, which weights it is understood are adjustable byadding weight thereto or taking weight therefrom.

The plunger rod 19, see Fig. 3, extends into a cylinder 22 and issecured to thepiston 23, anolsaid cylinderis in connection with anauxiliary pipe 25 which runs to a regulating valve chamber 26 that isconnectpressure .flows. This pipe 27 may be con nected with a city watersupply system or any other water supply system where water is suppliedunder regular pressure independently of the means for creating thepressure in the high pressure pipe 10. The regulating valve 28 inthevalve chamber 26 is operated by a valve stem 30 that extendsin adiaphragm chamber 31 and is connected ed with a pipe 27, through whichfluid under a with the diaphragm 32 therein. A weight regulating lever 3is fulcruined at its end at 34: in'the frame 35 which carries the-diaphragm and said lever ispivoted at 36 to the valve stem 30 andcarries the weight 37 on its outer end. i A pipe 39 extends from thelower side of the diaphragm chamber 31- to the'low pressure pipe 11.

The reducingvalve may be constructed as shown in Fig. 4 where the doublevalve 113 on the lower end of the rod 13 closes in the seat 11aas itmoves downward and opens as it moves upward. The weights 20 and 21 andthe mounting of the lever 15 is such that they willnormally hold thevalve 113 open.

The operation is as follows: hen the pressure in the low pressure pipe11 is too high, the fluid actingthrough the pipe 39, will lift thediaphragm 32 and open the valve 28and admit fluid under. pressure fromthe normal pressure pipe 2'? to the pipe 25 and that will actuate theplunger 23 and reduction valve 12 toward closed position and thus reducethe pressure in the low pressure pipe 11. On the other hand if thepressure is at any time too low in the low pressure pipe 11, thediaphragm will de:

the auxiliary pipe 25 and the plunger 23 and permit the latter todescend and cause correspondin movement of the lever 15 and reductionvalve stem 1.3-,which opens the 'scend and close the valve 28 andshutoff I the passage of fluidunder pressure through 100 rod 18 andlever 15, which will moi ethe reduction valve a little more, thusincreasing the pressure in the low pressure pipe.

In the modified apparatus, hown in Figs. 5 and 6, some of the parts arearranged to work oppositely to that shown in Figs. 1 to d, but toaccomplish the same result in substantially the same way. There, as seenin Fig. 6, the valve 28 is below the port 128 instead of above it as inFig. 2, and the lever 33 and weight 37 tends to hold the valve open andpermit the fluid under pressure in pipes and 27 to pass through to thecylinder 22 and force the piston upward and tend to hold the right handend of the lever 15 upward and thus hold the reduction valve 118 upwardandopen. With this arrangement the maximum pressure of the water actsnormally on the pis ton 23, while in the construction shown in Figs. 1to I} the minimum pressure of the water acts normally on said piston 23.Therefore, in this modified form, the reduction valve is caused to moveto a closing position when the pressure of water in pipe 25 1sdinnnlshed so as to allow theweighted end 21 of lever 15 to descend.

In order that the modified form may work as above explalned, the fulcrumof lever l5v is changed to the opposite side of rod 13,

from that shown in Fig. 3 to that shown in F i=g. 5, where it isfulcrumed on the rock- I. 1.1

mg bar 115 that is pivoted to the ear ii see Figs. 3 and 5. Thus whenweight 21 descends, the reductionvalve 1s closed, while in F 1g. 3 suchmovement of weight 21 causes the reduction valve to open When thepressure becomes too high in the low pres. sure pipe 11 the dlaphragm ofthe regulator is forced upward and the valve 28 tends to close andreduce the pressure in the auxiliary pipe 25 so that it lets the piston23 descend somewhat and cause the reduction valve to correspondinglymove toward closing position. The low pressure in pipe 11 will cause thereversal of the parts just mentioned and thus tend to open the reductionvalve.

Therefore, it seen there is more than one way to arrange the mechanismto operate as desired, the chief feature of the means being theutilization of the pressure in the auxiliary pipe to control thereduction valve in the main pipe. lVith this mechanism the parts willoperate automatically to regulate the reduction valve, and do sosilently andwithout any knocking or disagreeablecharacteristics duringthe operation thereof.

The lnvention claimed is:

The combination with high and low pressure pipes, and reduction valvemechanism connectlng them having an upwardly extending valve stem, .of aframe rigidly mounted on sald valve mechanlsm through which said valvestem reciprocates, a le ver fulcrumed between its end in said frame, aweight on each end of said lever, means for pivoting the lever to thevalve stem for controlling it, a plunger mounted on the frame, a plungerrod extending therefrom' and reciprocable in the frame and pivoted tosaid lever for actuatlng 1t, an auxiliary pipe connected wlth saidplunger for operating it by fluid under pressure therein independentlyof the high pressure pipe, and means controlled by the fluid underpressure in the low pressure pipe for regulating the pressure in'saidauxiliary pipe.

In witnesswhereof, I have hereunto affixed my signature.

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